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Published byEmma Evans Modified over 9 years ago
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MOVING MATERIALS INTO AND OUT OF CELLS
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MATERIAL MOVEMENT PASSIVE TRANSPORT ACTIVE TRANSPORT
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PASSIVE TRANSPORT DIFFUSIONOSMOSIS
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PASSIVE TRANSPORT WITHOUT USING ENERGY WITHOUT USING ENERGY DOWN HILL DOWN HILL
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DIFFUSION MOVEMENT FROM AN AREA OF HIGHER TO A LOWER CONCENTRATION MOVEMENT FROM AN AREA OF HIGHER TO A LOWER CONCENTRATION Uses O energy Uses O energy thru a membrane thru a membrane
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DIFFUSION (CONTINUED)
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WHAT IS A SOLUTION? WHAT IS A SOLUTION? WHAT IS THE SOLUTE? WHAT IS THE SOLUTE? WHAT IS THE SOLVENT? WHAT IS THE SOLVENT?
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SOLUTION A mixture that is consistent throughout A mixture that is consistent throughout Example salt water Example salt water
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SOLUTE A SUBSTANCE THAT DISSOLVES A SUBSTANCE THAT DISSOLVES IN A SOLUTION –Example: SALT in Salt Water
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SOLVENT A Substance in which a solute dissolves in a solution A Substance in which a solute dissolves in a solution Example: the WATER in a solution Example: the WATER in a solution
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OSMOSIS MOVEMENT OF WATER ACROSS A MEMBRANE
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OSMOSIS (CONTINUED) SALT SUCKS SALT SUCKS
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OSMOSIS (CONTINUED) HYPOTONIC SOLUTION HYPOTONIC SOLUTION –WATER CONCENTRATION lower – and –SALT CONCENTRATION IS higher –WATER WILL MOVE INTO THE CELL
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OSMOSIS (CONTINUED) HYPERTONIC SOLUTION HYPERTONIC SOLUTION –WATER CONCENTRATION higher – AND – SALT CONCENTRATION IS lower –WATER WILL MOVE OUT OF THE CELL
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OSMOSIS (CONTINUED) ISOTONIC SOLUTION ISOTONIC SOLUTION –WATER CONCENTRATION SAME ON BOTH SIDES OF THE MEMBRANE
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OSMOSIS (CONTINUED) TURGID = SWOLLEN LYSED = BREAK FLACCID = NOT FIRM SHRINK
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FACILITATED DIFFUSION Materials too large to sift thru the heads and tails of the membrane. Materials too large to sift thru the heads and tails of the membrane. Needs to go in thru the Intrinsic protein channels. Needs to go in thru the Intrinsic protein channels. Still uses NO energy Still uses NO energy It is still diffusion It is still diffusion
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ACTIVE TRANSPORT
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ENERGY IS USED TO MOVE MATERIAL ACROSS THE MEMBRANE ENERGY IS USED TO MOVE MATERIAL ACROSS THE MEMBRANE USUALLY FROM AREA OF LESSER CONCENTRATION TO AREA OF GREAT CONCENTRATION USUALLY FROM AREA OF LESSER CONCENTRATION TO AREA OF GREAT CONCENTRATION UP HILL UP HILL
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ACTIVE TRANSPORT (CONTINUED) EXAMPLE: SODIUM-POTASSIUM PUMP EXAMPLE: SODIUM-POTASSIUM PUMP MOVEMENT GLUCOSE INTO CELL: TYPCIALLY, CONCENTRATION WILL BE GREATER IN CELL MOVEMENT GLUCOSE INTO CELL: TYPCIALLY, CONCENTRATION WILL BE GREATER IN CELL
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Na + MOVED AGAINST CONCENTRATION GRADIENT
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ENDOCYTOSIS MOVEMENT OF TAKING MATERIAL INTO THE CELL
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Phagocytosis Cell Eating Cell Eating Taking FOOD into the cell Taking FOOD into the cell
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Pinocystosis Cell Drinking Cell Drinking Taking liquid in the cell Taking liquid in the cell
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EXOCYTOSIS MOVEMENT OF MOVEMENT OF TAKING TAKING MATERIAL OUT OF THE CELL MATERIAL OUT OF THE CELL
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